Weed control method of mechanical hill-drop drilling paddy field

Abstract

The invention relates to a weed control method of a mechanical hill-drop drilling paddy field and belongs to the technical field of paddy rice. The method includes the steps of firstly, leveling soil before sowing; secondly, processing seeds before sowing; placing the processed seeds in a direct sowing machine for sowing, and synchronously spraying soil sealing weed killer; spraying stem-leaf weed killer to control paddy field weeds about 30-40 days after sowing and before the five-leaf stage of paddy rice, irrigating water of 3-5cm one day after the spraying, and keeping 5-7 days, wherein the paddy field is free of a water layer during the spraying. By the arrangement, the method has the advantages that time and labor are saved, operation is facilitated, the weed killer does not restrain paddy rice seedlings, the stem-leaf weed killer is used to control the grassy weeds such as barnyard grass and moleplant at the 5-6-leaf stage of the paddy rice, broad-leaf weeds are controlled at the same time, and the method is high in weed removing efficiency, cost saving, convenient to use, and the like.

Description

technical field [0001] The invention belongs to the technical field of rice, and specifically relates to a method for preventing and controlling weeds in a mechanical hole direct-seeding paddy field. Background technique [0002] With the development of social economy and the advancement of in-situ urbanization, a large number of rural labor force has been transferred, and the large-scale operation of modern agriculture has more urgent needs for mechanical operations. In the 1980s, direct-seeding rice was widely welcomed by farmers because of its labor and time saving. Compared with sowing direct seeding, rice precision mechanical hole direct seeding technology integrates agricultural machinery and agronomy, mechanized production, which is conducive to increasing production, reducing production links such as seedling raising, pulling and transplanting, and reducing labor intensity. It has the advantages of saving costs, increasing efficiency, and improving quality. The adva...

AI Technical Summary

Problems solved by technology

However, due to the inability to irrigate, it is impossible to chemically control weeds during the first weeding peak period of weeds.

In addition, the large gap between the rows of machine-directed direct seeding also increases the competitiveness of weeds to rice.

Usually, the pre-sowing soil sealing treatment commonly used in sowing direct seeding cannot be used in machine direct seeding, because mechanical operations will affect the effect of soil sealing treatment, resulting in poor sealing effect on weeds

2-3 treatments of stem and leaf spraying herbicide can also achieve better weed control effect, but the human resources consumed by stem and leaf spraying are too expensive, and it is difficult to realize large-scale planting

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